MALICIOUS
124
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple links pointing to compromised WordPress sites, acting as a link farm to host potentially malicious files. The ML classifier strongly indicated maliciousness, and the presence of callback lures suggests a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and link farm behavior are indicative of a downloader or redirector for a second-stage payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607e8f3ace60d---94074893087.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/160a880776afe5---pagigipijorojiziwu.pdf
- http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083dd621f959---xugimeto.pdf
- https://www.treehousecare.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608052529f12c---polidiporukugifo.pdf
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/18c5b00d84ffb677a2edcb0614804c3a/jakupufirikafadutidusebi.pdf
- https://stagerightstaging.com/wp-content/plugins/super-forms/uploads/php/files/057b0a0adb4bb4cea09b983fd5106c12/nevotepiwox.pdf
- http://kursadowicz.pl/Upload/file/89115047445.pdf
- http://agataklimowska.pl/userfiles/file/96325537123.pdf
- https://burlingame.com/wysiwygfiles/file/ligixad.pdf
- https://steklo-shik.ru/userfiles/file/52204631499.pdf
- https://aihr-iadh.org/uploads/FCK_files/file/lulosigekufinakusijiliz.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160840e45db8a4---75737467027.pdf
- https://dcoderesearch.com/uploads/77269729551.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fe38976c7d---52838245637.pdf
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c30476db268---1998177066.pdf
- http://sts-logistika.ru/wp-content/plugins/super-forms/uploads/php/files/e9ddbb9e0301ac27967e93ef0963d3b3/virizegivugabotogo.pdf
- https://bandotrading.com/uploads/file/pakefikiwejitipivupe.pdf
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16097358906721---86860075338.pdf
- http://dynamic1984.com/user_file/file/nabitizifizarefewirasi.pdf
- https://regeneracion-capilar.com/wp-content/plugins/super-forms/uploads/php/files/01cd459be16c69ae35fa0b76b5eed2d3/jasufibuvagabegebusibap.pdf
- http://alemotta.com/resources/original/file/nuvulosemazadusopaxi.pdf
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16077c9bf9f640---gagul.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=class+9+english+lesson+4+question+answer
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010933.binfda05b73856c3c3d9840d86ed87fd395672c1459b93f9a7637258b9a8aad4406 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10933 | 10996 bytes |
font_01_sfnt_off0001228a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1228A | 16792 bytes |
font_02_sfnt_off00013a9c.bina0bb73a8aecc16687b84ae3d9e8050e85e2c956caaa8aa0919b118e7a4aaddbd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A9C | 17000 bytes |
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